from flask import current_app, jsonify
from flask import g
from flask import request
from flask import session

from info import constants
from info.models import User, News, Category
from info.utils.common import user_login_data
from info.utils.response_code import RET
from . import index_blu
from flask import render_template

@index_blu.route('/news_list')
def news_list():
    # 1. 获取参数
    cid = request.args.get("cid", '1')
    page = request.args.get("page", '1')
    per_page = request.args.get("per_page", constants.HOME_PAGE_MAX_NEWS)

    # 2. 校验参数
    try:
        page = int(page)
        cid = int(cid)
        per_page = int(per_page)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 3. 查询数据并分页
    filters = [News.status == 0]
    # 如果分类id不为1，那么添加分类id的过滤
    if cid != 1:
        filters.append(News.category_id == cid)
    try:
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page, per_page, False)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")
    # 获取查询出来的数据
    news_model_list = paginate.items
    # 获取到总页数
    total_page = paginate.pages
    current_page = paginate.page

    news_dict_li = []
    for news in news_model_list:
        news_dict_li.append(news.to_basic_dict())

    data = {
        "total_page":total_page,
        "current_page":current_page,
        "news_li":news_dict_li
    }
    # 4. 返回数据
    return jsonify(errno=RET.OK, errmsg="OK",data=data)

@index_blu.route('/')
@user_login_data
def index():

    #
    # data = {
    #     "user_info": user.to_dict() if user else None,
    #     "click_news_list": click_news_list,
    # }

    # 获取当前登录用户id
    # user_id = session.get("user_id")
    # # 通过id获取用户信息
    # user = None
    # if user_id:
    #     try:
    #         user = User.query.get(user_id)
    #     except Exception as e:
    #         current_app.logger.error(e)
    user =g.user
    news_list = []
    try:
       news_list = News.query.order_by(News.clicks.desc()).limit(constants.CLICK_RANK_MAX_NEWS)
    except Exception as e:
        current_app.logger.error(e)
    click_news_list = []
    for news in news_list if news_list else []:
        click_news_list.append(news.to_basic_dict())
    # 获取新闻分类数据
    categories = Category.query.all()
    categories_dicts =[]
    for category in categories:
        # 拼接内容
        categories_dicts.append(category.to_dict())

    data = {
        "user": user.to_dict() if user else None,
        "click_news_list": click_news_list,
        "categories_dicts": categories_dicts
    }
    print(data['user'])
    return render_template('news/index.html',data=data)

@index_blu.route('/favicon.ico')
def favicon():
    return current_app.send_static_file('news/favicon.ico')

